MERCURE PARIS SUD LES ULIS. . From Paris on the A10, take exit ZA Courtaboeuf and then take the second exit on the right and take the first street on the left. From Paris on the N118, take exit 13 Courtaboeuf Mondetour. Turn right at the traffic lights then right again at the second s treet. From elsewhere in France on A6 or A10, take exit Paris Ouest Versaille Les Ulis Courtaboeuf. From Paris via RER, take line B towards St Remy and alight at Massy Palaiseau.From there, take bus 0602 towards ZA Courtaboeuf and alight at Atlantique.